The synthesis of chiral triazole-fused pyrazine scaffolds from readily available substrates in a step-economical asymmetric catalytic way is highly appealing. We herein report that an efficient Cu/Ag relay catalyzed protocol employing cascade asymmetricpropargylicamination, hydroazidation, and [3 + 2] cycloaddition reaction with high efficiency to access the target enantioenriched 1,2,3-triazolo[1
以经济的不对称催化方式从容易获得的底物中合成手性三唑稠合吡嗪支架非常有吸引力。我们在此报道了一种高效的 Cu/Ag 中继催化方案,采用级联不对称炔丙胺化、叠氮化和 [3 + 2] 环加成反应,高效获得目标对映体富集的 1,2,3-三唑并[1,5- a ]吡嗪是通过应用新型N、N、P-配体而实现的。三种组分的一锅反应表现出高官能团耐受性、优异的对映选择性和广泛的底物范围以及易于获得的起始材料。